Injection mold convenient to clean

Abstract

The injection mold convenient to clean comprises a bearing frame, a lower mold, a hydraulic telescopic rod and a driving motor, an upper positioning plate and a lower positioning plate located below the upper positioning plate are arranged on the bearing frame, the lower mold is arranged at the top of the lower positioning plate, a rotating shaft close to one end is arranged at the top of the lower positioning plate, and a hydraulic telescopic rod is arranged at the other end of the lower positioning plate. The top of the rotating shaft is fixedly connected with a horizontal exhaust pipe, one end, far away from the rotating shaft, of the horizontal exhaust pipe is a blind end, the bottom of the horizontal exhaust pipe is provided with an air guide hole close to the blind end, and the interior of the horizontal exhaust pipe is connected with an adapter shaft in an up-down sliding and circumferential rotating mode. The utility model has the function of air exhaust type scrap removal, has the advantage of more environment-friendly mold cleaning, and also has the function of replacing the rod brush outside, so that the replacement of the rod brush is more convenient and quicker.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold which is easy to clean. Background Art

[0002] The advantages of injection molds are fast production speed, high efficiency, automated operation, a wide variety of colors, shapes from simple to complex, sizes from large to small, precise product size, easy product replacement, and the ability to produce parts with complex shapes. Injection molding is suitable for mass production and complex-shaped products and other molding processing fields. During the working process of the injection mold, after the product is taken out, some residual debris is likely to adhere to the concave mold block, which is likely to affect the molding of the product in the next product. It is troublesome to manually clean up these debris adhering to the concave mold block each time.

[0003] At present, the utility model with publication number CN217098615U proposes an injection mold that is easy to clean, including a fixed frame, a limiting tube, a limiting long axis, a hydraulic telescopic device 1, a convex module, a hydraulic telescopic device 2, a motor 1, a disc brush structure, a blower, a multi-head nozzle structure, a fixed plate, a threaded long rod, a motor 2, a concave module, a roller structure, a threaded connecting block and a numerical control module, wherein one end of the hydraulic telescopic device 1 is connected and fixed to the inner side of the fixed frame upward, and one end of the hydraulic telescopic device 1 is connected and fixed to the center position of the convex module upward away from the fixed frame. The top ends of the four limiting tubes pass through the fixed frame and are arranged upward, and one end of the four limiting long axes is connected and fixed to the convex module upward, and the four limiting long axes are inserted into the tube bodies of the four limiting tubes at one end away from the convex module. The top ends of the multiple roller structures are connected and fixed to the concave module downward, and the threaded connecting block is connected and fixed to the concave module upward.

[0004] However, the above-mentioned prior art still has shortcomings in actual use: 1. When the cleaning structure composed of a disc brush structure, a blower and a multi-head air nozzle structure is used to clean the debris in the mold cavity, the debris will be sprayed out and form dust pollution, which is environmentally friendly; 2. The disc brush structure is the main component of the cleaning function and is a wearing part. Moreover, the disc brush structure is arranged in a fixed frame, and the space for replacement is narrow, which leads to the defect of inconvenient operation of replacing the disc brush structure.

[0005] To this end, the utility model provides an injection mold which is easy to clean. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an injection mold that is easy to clean, so as to solve the problems raised in the above-mentioned background technology. The utility model has the function of vacuum-type debris removal, and thus has the advantage of more environmentally friendly mold cleaning, and also has the function of replacing the rod brush externally, making the replacement of the rod brush more convenient and quick.

[0007] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: an injection mold that is easy to clean, including a carrying frame, a lower mold, a hydraulic telescopic rod and a driving motor, the carrying frame is provided with an upper positioning plate and a lower positioning plate located below the upper positioning plate, the lower mold is arranged on the top of the lower positioning plate, the top of the lower positioning plate is provided with a rotating shaft near one end, the top of the rotating shaft is fixedly connected with a horizontal exhaust duct, the end of the horizontal exhaust duct away from the rotating shaft is a blind end, the bottom of the horizontal exhaust duct is provided with an air guide hole near the blind end, the horizontal exhaust duct is connected with an adapter shaft for up and down sliding and circumferential rotation, the bottom of the adapter shaft is detachably connected with a rod brush, the rod brush is opposite to the air guide hole, the hydraulic telescopic rod and the driving motor are arranged on the top of the horizontal exhaust duct and are respectively used to control the up and down movement and circumferential rotation of the adapter shaft.

[0008] Furthermore, the top of the horizontal exhaust duct is fixedly connected to a door-shaped plate, the hydraulic telescopic rod is fixedly arranged on the top of the door-shaped plate and its output shaft is fixedly connected to a suspension plate, the drive motor is fixedly arranged on the top of the suspension plate, and the top gap of the adapter shaft passes through the top of the horizontal exhaust duct and is fixedly connected to the output shaft of the drive motor.

[0009] Furthermore, a limiting sleeve which is loosely sleeved on the adapter shaft is fixedly connected to the top of the horizontal exhaust pipe, and a sealing sponge sleeve is fixed inside the limiting sleeve.

[0010] Furthermore, a shielding mesh sleeve coaxial with the air guide hole is fixedly connected to the bottom of the horizontal exhaust pipe.

[0011] Furthermore, a control motor is fixedly connected to the bottom of the lower positioning plate, and an output shaft of the control motor is fixedly connected to the bottom of the rotating shaft.

[0012] Furthermore, a connecting pipe coaxial with the rotating shaft is fixedly connected to the top of the horizontal exhaust pipe, and an exhaust fan is fixedly connected to the top of the connecting pipe.

[0013] Furthermore, the rod brush includes a positioning cross bar and a brush strip fixedly arranged at the bottom of the positioning cross bar, and the middle part of the top of the positioning cross bar is fixedly connected to a connecting sleeve sleeved on the bottom of the adapter shaft, and a locking bolt is screwed through the outer peripheral wall of the connecting sleeve.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model arranges a rotating shaft near the side of the lower positioning plate, the top of the rotating shaft is connected to a horizontal exhaust pipe, a rod brush with up and down and rotational movement functions is arranged at one end of the horizontal exhaust pipe, and then an air guide hole opposite to the rod brush is opened at the bottom of the horizontal exhaust pipe. When the rod brush and the mold cavity of the lower mold are opposite and rotated for cleaning, the horizontal exhaust pipe will directly extract the debris floating in the mold cavity, which has the advantage of more environmentally friendly mold cleaning.

[0016] 2. The utility model sets a transfer shaft in the horizontal exhaust duct that is detachably connected to the bottom and the rod brush. When the shaft drives the horizontal exhaust duct to move to the point where the air guide hole is located outside the mold bearing frame, the space for replacing the rod brush becomes larger, which means that it is more convenient to replace the rod brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an injection mold that is easy to clean according to the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure;

[0019] Figure 3 This is a schematic structural diagram of a positioning cross bar of an injection mold that is easy to clean according to the utility model, which is moved to the outside of the carrying frame;

[0020] In the figure: 1. load-bearing frame; 11. upper positioning plate; 12. lower positioning plate; 2. lower mold; 3. rod brush; 31. positioning cross bar; 311. connecting sleeve; 3111. locking bolt; 32. brush strip; 4. hydraulic telescopic rod; 41. hanging plate; 5. driving motor; 6. rotating shaft; 7. horizontal exhaust duct; 71. air guide hole; 72. door plate; 73. connecting pipe; 74. limiting sleeve; 741. sealing sponge sleeve; 8. adapter shaft; 9. shielding net sleeve; 101. control motor; 102. exhaust fan. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3The utility model provides a technical solution: an injection mold that is easy to clean, including a bearing frame 1, a lower mold 2, a hydraulic telescopic rod 4 and a driving motor 5. The bearing frame 1 is provided with an upper positioning plate 11 and a lower positioning plate 12 located below the upper positioning plate 11, and the lower mold 2 is arranged on the top of the lower positioning plate 12, wherein the upper positioning plate 11 is used to connect with the upper mold that is adapted to the lower mold 2, that is, the upper mold moves up and down relative to the upper positioning plate 11 to realize the separation and combination of the mold with the lower mold. The specific connection method and connection structure of the upper mold and the upper positioning plate 11 refer to the structure in the prior art mentioned in the background technology, and in this embodiment, the lower mold 2 and the lower positioning plate 12 are fixedly connected.

[0023] In the present technical solution, a rotating shaft 6 near one end is provided at the top of the lower positioning plate 12, wherein a control motor 101 can be fixedly connected to the bottom of the lower positioning plate 12, and the output shaft of the control motor 101 is fixedly connected to the bottom of the rotating shaft 6, and the control motor 101 provides driving force for the rotation of the rotating shaft 6. A horizontal exhaust pipe 7 is fixedly connected to the top of the rotating shaft 6, and the rotation of the rotating shaft 6 can drive the horizontal exhaust pipe 7 to move horizontally. The end of the horizontal exhaust pipe 7 away from the rotating shaft 6 is a blind end, and an air guide hole 71 near the blind end is provided at the bottom of the horizontal exhaust pipe 7, and the opening of the air guide hole 71 faces downward. The rotating shaft 6 stops moving when the air guide hole 71 and the inner cavity of the lower mold 2 are relative. When the horizontal exhaust pipe 7 is controlled to exhaust air outward, the debris in the inner cavity of the lower mold 2 will be sucked away by the horizontal exhaust pipe 7, so as to prevent the debris from polluting the environment around the mold.

[0024] A connecting pipe 73 coaxial with the rotating shaft 6 can be fixedly connected to the top of the horizontal exhaust duct 7, and an exhaust fan 102 can be fixedly connected to the top of the connecting pipe 73. When the exhaust fan 102 is started, air will be exhausted from the horizontal exhaust duct 7, and then the air outlet of the exhaust fan 102 will be connected to the external bag dust collector through a pipeline to collect debris.

[0025] An adapter shaft 8 is connected to the horizontal exhaust duct 7 so as to slide up and down and rotate circumferentially, that is to say, the adapter shaft 8 has the function of moving up and down and rotating relative to the horizontal exhaust duct 7. A rod brush 3 is detachably connected to the bottom of the adapter shaft 8, and the rod brush 3 is opposite to the air guide hole 71. When the adapter shaft 8 rotates, it can drive the rod brush 3 to rotate, and when the adapter shaft 8 moves up and down, it can drive the rod brush 3 to move up and down. When the rod brush 3 moves downward and extends out of the air guide hole 71, it will approach the inner cavity of the lower mold 2. At this time, when the adapter shaft 8 is connected, the rod brush 3 will clean up the debris adhered to the inner cavity wall of the lower mold 2, so that the debris fallen off the inner cavity wall of the lower mold 2 will float up, and the floated debris will be directly sucked away by the horizontal exhaust duct 7.

[0026] The hydraulic telescopic rod 4 and the driving motor 5 are arranged at the top of the horizontal exhaust duct 7 and are used to control the up and down movement and circumferential rotation of the adapter shaft 8 respectively, that is to say, the hydraulic telescopic rod 4 is used to drive the adapter shaft 8 to move up and down, and the driving motor 5 is used to control the rotation of the adapter shaft 8. Specifically, a door-shaped plate 72 is fixedly connected to the top of the horizontal exhaust duct 7, the hydraulic telescopic rod 4 is fixedly arranged at the top of the door-shaped plate 72 and its output shaft is fixedly connected to the hanging plate 41, and when the hydraulic telescopic rod 4 is actuated, it will drive the hanging plate 41 to move up and down. The driving motor 5 is fixedly arranged at the top of the hanging plate 41, and when the hanging plate 41 moves up and down, it will drive the driving motor 5 to move up and down. The top gap of the adapter shaft 8 passes through the top of the horizontal exhaust duct 7 and is fixedly connected to the output shaft of the driving motor 5. When the driving motor 5 moves up and down, it will drive the rod brush 3 to move up and down, wherein the driving motor 5 provides driving force for the rotation of the adapter shaft 8.

[0027] In this embodiment, the top of the horizontal exhaust duct 7 is fixedly connected with a limit sleeve 74 which is gap-mounted on the adapter shaft 8. A sealing sponge sleeve 741 is fixed inside the limit sleeve 74. The sealing sponge sleeve 741 serves to seal the gap between the adapter shaft 8 and the limit sleeve 74. The purpose of this arrangement is to concentrate the suction force of the horizontal exhaust duct 7 at the mouth of the air guide hole 71, thereby increasing the negative pressure suction force.

[0028] Furthermore, a shielding mesh sleeve 9 coaxial with the air guide hole 71 is fixedly connected to the bottom of the horizontal exhaust pipe 7. The shielding mesh sleeve 9 prevents the rotating rod brush 3 from throwing out the debris in the inner cavity of the lower mold 2, thereby preventing the debris from being blown out.

[0029] In this embodiment, the rod brush 3 includes a positioning cross bar 31 and a brush strip 32 fixedly arranged at the bottom of the positioning cross bar 31. The middle part of the top of the positioning cross bar 31 is fixedly connected with a connecting sleeve 311 sleeved on the bottom of the adapter shaft 8. The outer peripheral wall of the connecting sleeve 311 is penetrated and screwed with a locking bolt 3111. When the locking bolt 3111 is tightened, one end of the locking bolt 3111 will press against the outer peripheral wall of the adapter shaft 8. When the locking bolt 3111 is loosened, the connecting sleeve 311 and the adapter shaft 8 can be easily separated. This connection structure cooperates with the rotation function of the rotating shaft 6, has the function of replacing the rod brush 3 outside the bearing frame 1, and thus has the advantage of more convenient replacement of the rod brush 3.

[0030] Working principle: when it is necessary to clean the debris in the cavity of the lower mold 2, the upper mold is controlled to move upward. At this time, the upper mold and the lower mold 2 are separated, and a clearance space is formed between the upper mold and the lower mold 2. Then the control motor 101 is started to drive the rotating shaft 6 to rotate, the horizontal exhaust pipe 7 operates and drives the shielding mesh sleeve 9 to be relative to the cavity on the lower mold 2, and then the exhaust fan 102 is started, the horizontal exhaust pipe 7 draws air outward, and the external gas will enter through the shielding mesh sleeve 9, control the hydraulic telescopic rod 4 to push, the suspension plate 41 drives the driving motor 5 to descend, and the brush strip 32 at the bottom of the rod brush 3 extends into the cavity of the lower mold 2, start the driving motor 5, and the adapter shaft 8 drives the positioning cross bar 31 to rotate. The brush strip 32 will clean and move the debris in the upper cavity of the lower mold 2, and the floating debris will enter the horizontal exhaust pipe 7 with the airflow, and finally enter the external bag dust collector, while realizing the cleaning of the mold, avoiding the debris from polluting the environment around the mold.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An injection mold that is easy to clean, comprising a bearing frame (1), a lower mold (2), a hydraulic telescopic rod (4) and a driving motor (5), wherein the bearing frame (1) is provided with an upper positioning plate (11) and a lower positioning plate (12) located below the upper positioning plate (11), and the lower mold (2) is arranged on the top of the lower positioning plate (12), characterized in that: A rotating shaft (6) near one end is arranged on the top of the lower positioning plate (12), and a horizontal exhaust pipe (7) is fixedly connected to the top of the rotating shaft (6). The end of the horizontal exhaust pipe (7) away from the rotating shaft (6) is a blind end. An air guide hole (71) near the blind end is opened at the bottom of the horizontal exhaust pipe (7). A transfer shaft (8) is connected in the horizontal exhaust pipe (7) so as to slide up and down and rotate circumferentially. A rod brush (3) is detachably connected to the bottom of the transfer shaft (8), and the rod brush (3) and the air guide hole (71) are opposite to each other. The hydraulic telescopic rod (4) and the driving motor (5) are arranged on the top of the horizontal exhaust pipe (7) and are respectively used to control the up and down movement and circumferential rotation of the transfer shaft (8).

2. The easy-to-clean injection mold according to claim 1, characterized in that: The top of the horizontal exhaust pipe (7) is fixedly connected to a door-shaped plate (72), the hydraulic telescopic rod (4) is fixedly arranged on the top of the door-shaped plate (72) and its output shaft is fixedly connected to a suspension plate (41), the drive motor (5) is fixedly arranged on the top of the suspension plate (41), and the top gap of the adapter shaft (8) passes through the top of the horizontal exhaust pipe (7) and is fixedly connected to the output shaft of the drive motor (5).

3. The easy-to-clean injection mold according to claim 2, characterized in that: The top of the horizontal exhaust pipe (7) is fixedly connected to a limiting sleeve (74) which is sleeved on the adapter shaft (8) with a gap, and a sealing sponge sleeve (741) is fixedly sleeved inside the limiting sleeve (74).

4. The easy-to-clean injection mold according to claim 3, characterized in that: A shielding mesh sleeve (9) coaxial with the air guide hole (71) is fixedly connected to the bottom of the horizontal exhaust pipe (7).

5. The easy-to-clean injection mold according to claim 1, characterized in that: The bottom of the lower positioning plate (12) is fixedly connected to a control motor (101), and the output shaft of the control motor (101) is fixedly connected to the bottom of the rotating shaft (6).

6. The easy-to-clean injection mold according to claim 1, characterized in that: A connecting pipe (73) coaxial with the rotating shaft (6) is fixedly connected to the top of the horizontal exhaust pipe (7), and an exhaust fan (102) is fixedly connected to the top of the connecting pipe (73).

7. The easy-to-clean injection mold according to claim 1, characterized in that: The rod brush (3) comprises a positioning cross bar (31) and a brush strip (32) fixedly arranged at the bottom of the positioning cross bar (31); a connecting sleeve (311) sleeved on the bottom of the adapter shaft (8) is fixedly connected to the middle of the top of the positioning cross bar (31); a locking bolt (3111) is screwed through the outer peripheral wall of the connecting sleeve (311).

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